Rolling-machine.



C. G. GROTNES.

' ROLLING MACHiNL APPLICA'HON FILED SEPT. 3- Hi7.

1,284,093. Patented Nov. 5,1918.

4 SHEETS-SHEET I.

v c. e. GROTNES.

ROLLING MACHINE.

APPLICATION HLD PI-13,1917- 1,284,093. PatentedNov. 5,1918.

4 SHEETS-SHEET 2- I III I I! c. a. GROTNES. ROLLING MACHINE. APPLICATION FI LED SEPT- I 3, I91?- 4 Wm M m WW A a I a m w z c. e. GROTNES. ROLLING MACHINE. APPLICATION FI LED SE PTL 13 917.

Patented Nov. 5,1918. 02 A 4 4 SHEETS-SHEET 4.

. I 5 i -fi 1 5 5 5 V v cyiwfififaf r away 60mm;-

UNITED; STATES PATENT OFFICE.

CHARLES o. eno'rims, or cmcnoo, Immors.

ROLLING-MACHINE.

' To all whom it may) concern Be it known that I, Charms G. Gno'rnns, a citizen of the United States, resid ng at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Rolling-Machines, of which thefollowing is a specification.

This invention relates to a machine for forming tire rims or similar annulardevices,

and the general object of the invention is to provide an improved machine which will facilitate the manufacture of such devices.

A further object of the invention is to provide a machine which is comparatively simple in construction and operation and at the same time is efficient and ractical.

I have illustrated a preferre embodiment of my invention in the accompanying drawings forming a part hereof, in which Figure 1 is a side elevation of the machine with a completed rim in position therein. Fig. 2 is'a vertical sectional view through the machine taken in the plane of line 2-2 of Fig. 3. Fig. 3 is' a horizontal sectional view taken in the plane Qf line 3-3 Fig. 2. Fig. 4 is a front elevation. Fig. 5 is a fragmental detail 'view on a large scale showing a section of the completed rim between the shaping rolls. Fig. 6 is a fragmental view showing -ed upon a suitable base 2 and carrying a shaping roll 3; a head 4 hinged to the frame "and carrying a shaping roll 5; adjustable guide rolls 6 carried by said head; and a tensioning roll 7' movable by the head 4 to engage wlth the work at a point substantially diametrically opposite that engagedby the shaping rolls.

I The frame 1 may he made in the form ofa single casting having forward and rear sides 8 and 9 connected together bya top piece 10 having transverse ribs 10 on its underside. On each side, substantially centrally of the frame, is mounted a suitable 'ournal bearing 11 in which is mounted a s aft 12 having hired on its forward end the shapin roll 8.

Thehead 4 also is in the form 0 a rectangular frame having side bars 13 and 14 connected together by acentral cross-piece 15 and a forward cross-rod 16. At their rear ends, saidside-b'ars are each rovidedwith a depending arm 17- carrying tween them at their lower ends a shaft 18 having its op Specification 0! Letters Patent.

posite ends mounted in bearing brackets 19 secured on the sides 8 and 9 at the rear end of the frame.

On the underside of the side-bars 13 and I Patented Nov. 5, 1918. Application mes September 13, 1917. Serial at. 191,101.

14 of the head 4 is secureda pair of journal bearings 20 in which is mounted a shaft 21 having fixed on its forward end the shaping roll 5. Said shaft 21 is mounted on the head 1 substantially centrally thereof so that the roll 5 is adapted to be swung with the head into and out of operative engagement with the roll 3 mounted centrally of the frame.

The shaping rolls 3 and 5 may be rotated by any suitable means. Herein I have shown a power pulley 22- mounted on a supporting shaft 23 in a bracket 24 on the rear side of the frame.

shaping roll 3 is driven from said drive-shaft 1 18 by means of a spur gear 27 on the rear end of the roll shaft 12, meshing with a pinion 28 fixed near the rear end of the drive- Shaft; and the upper or movable shaping roll 5 isdriven by means of a gear wheel 29 fixed on the roll shaft 21 and meshing with an idler pinion 30 which in turn meshes with a pinion 31 fixed on'the drive-shaft. The

idler pinion is carried by a short shaft'32 supported. in ournal bearin s 33 mounted on the under side of the hea 4; and it will be evident that by rollin upon the pinion 31 on the (lIlVfi Shtlfl'i the id er permits the head to be swung u on the drive-shaft without- The shaft 23 has fixed thereto a' pinion 25 meshing with aspur gear 26 fixed tutes a drive-shaft. The lower or stationary interfering wit the operation of the shap- 7 ing rolls.

The means for raising and lowering the head 4 to swing the shaping roll 5 into and out of operative engagement with the shaping roll 3, preferably comprises a pair of crank arms 34, each having one end thereof fixed on one end of a' shaft 35 and having its other end connected to the front end of the head 4 by means of a connecting rod 36. Said crank shaft is supported in suitable journal bearings 37 mounted side of a pair ofoutwardly extending arms 38 at the front end of the frame; and the upper ends of the rods 36 are connected tor the cross-rod 16 of the head.

on the under- .105

' the hand Wheel.

free to rotate upon the shalt l but is adapt-' the alizlft, means of ii l is pivot-e 70 a Israel-mi;

a pinion (Figs. 2, and

g :lersi eee a shaft- -l0 which is n'io'miled in imcl. 5&2 at the forward cmlQ 05 ill, on the frame. Said shaft has fixed the which me with a spur gear l4- molmted on 2a. elm; journal-2d in the arms 38 below the ill and the shaft 45 has vto a pinion. 4.6 which meshes will: 1;? 4:7 liziecl 011 the crank shaft By these means, will be apparenq illet the rotation 0' hand Wheel will operate the crank are to raise or lower the head ll file paras being so proportioned and seven: gl. that the head is in its lowernzmsl; position with its shaping i'oll in opera-live e u with the shaping roll 5, the crank e. we "(\"lli bein their lowermost position.

v seehaving; its periplaer y' shaped ll ml; by it liens, said sleeve be i v meet by means of 49 For operating the crank shall tive power, ;a pulley 50 may he pl'oviile i on the rear end of the all, 4.0 Wlllil'l'l carries Said pulley nernmlly is ed to be slid into zigemenl; with conical clutch member 51 3 and 4:) 1122 3;} on

ever Seicl 3 mmmtecl on l ke rear arm 38 at the for l encl of lake frame and at yoked upper end is suimlaly eonnecled to the grooved ho e of the g means of a link to an tegral. 'Wltll e treedle pi.

n. fermell in- :2; mid the link 'zhe flanged end. of rear of the he's-e. The love illlfi Mlle AWE-1101* molly held inoperative position by of wcompre ion spying pm linkmntl between the lie the arm and a collar: seam link. It Will be seen llama depi' the treaalle 56 will throw lalie liciwzm pulley 50 into operative engngen'lent "with the clutch member 51 on the shaft 4&0 which shaft, through the gear train above so; forth, Will operate the crunk'azms to raise .01 lower the head.

I The guide rolls ll are mounted for movement with the head 1: upon the lower encl's of :1. pair of slide blocks; 0 mljusmblv mounted in supporting him-ks ill. Said vsmiporting: blocks are secured to llllO fin-Weill side bar 3 of the head 4; and the slide blocks are adjustable therein by income 01" screw spindles 2 whose [ownowls: are threaded inlo the slide b wk- :u'ml whose nope ends operate in ome' 63 mounted Oil the amp porting bloeles am are provided with lmml by max wheels m, lmill slide blocks in oe moxof a. lever 6'? pivotally mounted in :1 hear ing (FEM .l and 3) nmunted upon a bracket (St-5 {l,(l}l.lSl'kll' l V eecm'ml the P021 and Gillie frame 1. (Fig: '6) A Jul 21 its upper end eliclul'ily connected from" end of a bracket ?'O which is fixed lie lieacl and its lower end to the IGfll 0i level. 6?, serves move the tensioning roll :1. the head is raieed and lowered to insert a blenk or remove a completed rim. The upper and of the link '59 adapteil. to slide between a. pair. of nuts 71. in pivot liez-w' 1e; 72 secured to the real. end of the bracket T0 the nuts 71 being adjusted to pelfi fllli like free movei'nenl". of the roll 7 when l1; e lieacl in operativeposi'lon so that the roll is ixzerely held in operative engagement with lil'il, V-"Ullx'. by the action. of gravity. The lower eml of the link also is adeptecl to l)['- adjusi'ably connected to the rear and of the lever in order that the proper amount of movement will be imported 70 the roll by: the movement of the head; and by ZTRilSOll llln'b feet that, the bllj'ilfilmlj 58 is mljusml" secured to the frame, the bearing mln (l to be iifiljllsl ild lwrlzontallylo posime roll '7 Willi its center in the Same ville-a]. plane as the 'cemal. ylane 01?. the wmla' between me rollo 3 and :5, Theme chine thus is arranged t be adjusted for rolling work of varying diameter anti width. eferi'ing' lIO I? 3 and ll, 73 lllllSlTIFIlJGL-E a; luieru-lly adjushzble guide for The llllll'llklTllL Said. guide consists (if a pair of guide rolls 74 mounted upright ly in a pair of bearing blocks, 75 slillably mounted on a bracket 76' secured to the forward side of the frame Said bearing blocks are arranged to be ad: 'jl lSlLQil toward and. away from each other mnmllzmeously by means of a screw spindle I! ll hav ng a hand Wheel 78 on us forward end sszucl screw being provided new its opposit ends W1l1l'a right and left-hand tlireacls engaging with (he 1.,SPGCUVG bearing blocks. 11 ill ne 3 ppzuenl, lint by plus construction the :iprigm rollers are adapted to accurulpl poemon and guide rims of verving w dths will: relierenee to the elmping rolle.

in llle operation of forming a tire or formed on eon-ll. edge of the block the like, the head 4 is elevated by an operation of the crank arms 34 either manually or by motive power applied to the pulley 50. The blank from which the rim or other article is to be made, and 'which has been previously formed, is then placed in position upon the rapidly revolving shaping roll 3 and the head lowered by an operation of the crank arms. As the head is lowered, the guide rolls 6 and the tensioning roll '2' having been properly adjusted in accordance with the diameter of the rim tobe rolled, the shapingroll 5 and the guide rolls 6 engage with the outer periphery of the blank and. the tensioning roll 7 engages with the inner periphery thereof at a point subcompleted, the blank has'been forced to as smile the shape determined by the rolls, as

shown in Fig. 5, to form the completed rim a. A

Preferably, in the rolling operation, the crank arms as are operated by means of the hand wheel 39 to gradually lower the movable shaping roll into engagement with the work, but the elevation oft-he head, at the completion of the rolling operation, is pref-- erably accomplished. rap-idly by motive power applied to the pulley 50 which is thrown into operative engagement with the shaft 40 by the depression of the treadle 56.

It will be understoodthat the shaping rolls may be of any desired form, those herein shown being shaped to form the ordinary .i'ire' rim of automobile wheels.

Various features of this invention are applicable-to machines for bending a strip of metal into the form ofa hoop or ring. It would therefore have it understood that the invention is not limited to the construction and arrangement of parts herein shown,

It will also be understood that while I have herein illustrated and described a crank arm on the shaft 35 for imparting a swing ing movement to the head 4:, any equivalent means such as acam or other eccentric ele- "ment may be employed for this purpose.

I claim as my invention: 1. A machine of the class referred to having, in combination, a pair of shaping rolls, a guideroll, means for rotating said shaping rolls, means for moving one of said shaping rolls and said guide roll into operative en-.

gagement with the Work, a tensioning roll,

and means 'operatively associated with the means for'moving the movable shaping roll and the guide roll for moving the tensioning roll into engagement with the work.

2. A machine of the class referred to, in eluding a pair of shaping rolls, means for rotating said rolls, means for moving one of said rolls into operative engagement with the work, a guide roll adjacent the movable shaping roll and movable therewith, and a movable tensioning roll arranged to mo e with the movable shaping roll into engage, ment with the work at a point substantially diametrically opposite that engaged by the F5 shaping roll.

3. A machine of the class referred to inluding a frame having a drive shaft at one 1d, a head pivotally mounted on, said shaft, a roll mounted" on the under side of said so head parallel to said shaft, a roll-mounted on sail frame, means located between said frame and head connecting said rolls to the shaft for rotation thereby, and means 'connected to the freeend of the head for moving it on its" pivotal axis.

a. A machine-of the class referred to, ill-g, eluding a frame, a head pivotally mounted above the frame, a pair of shaping rolls carried. by the frame and head, a guide roll adjustably mounted on the head, means for rotating said shaping rolls, and means for raising and lowering the head to swing the rolls carried thereby into and out of operative engagement with the work to be rolled.

A machine of the class referred to, including a frame, a head hinged tothe frame,

a pair of shaping rolls carried by the franie' and head, means for rotating the shapin rolls, and a guide roll carried by the head and adjustable thereon in a planeradially ,of the rim being rolled.

6. A machine of the class referred to, including a frame, ahead hinged to the frame, l a pair of shaping rolls carried by the frame and head, means for rotating said rolls and a tensioning roll movable by the head into and out of operative position, said tensioning roll being movable independently of the head while in operative position.

'7. A machine of the class referred to,'ineluding a frame, a head hinged to the frame, a pair of shaping rolls carried by the frame and head, J. .eans for rotating said rolls, a. tensioning roll, and means operable by the head for moving the tensioning roll in the swinging movements of the head, said means being adjustable. to accommodate various sizes of Work.

8. A machine of the class referred to having, in combination, a frame, a head movably mounted on said frame, a pair of shaping rolls carriedby the frame and head, a shaft jonrnaled in the frame and having an eccentric element fixed thereon and opera- ,tively connected-with the head, and means for rotating the shaft, said eccentric element being continuously rotatable with the shaft and operable when the shaft is rotated in one direction to cause the head and thereby its ml to swi 3.1g first in' (mediz's'sctinn am then in the other.

9. A machine of? (3m ing, in cm'n bim." ally mounied shaping 1' files .x a guide r011. carried bv 'a'efezmd to haw a head. pivoi "A1318, a pair of rame. and head, "ad, means for swinging M12 11 nd, and Mirna-table means earned by $136 fumea'djuce's'zt tha shap ng p911 thglreon IP01 p'asitipning i'ue W-fn reintlve to the, aping mlis and "fflidfi r011.

10. A machine 01? the (11m; 1 [emad i11- eluding fmme, a head weave the 511mm :2, pair of shaping rolls amnefi the frame and head, a block slidab'ly mmimtsd 011 the head, a guide r012 mounted 011. said b10615, upwar lly amending; (ma-(is es fer adjusting said block x0 position the guide. rai i, means for ret eating said s1 uping mils,

and means;

for 'aising and lswering the head. m mam/e. 26*

the rolls curried thereby into and mm 1112 opera we engagement with the Work "w 3%- 1',H 2d.

11 A, machine of the class havinn' in combination, a 55mm .11 g" a 25 tmnswrsv shaft mouniiea upon Out: end 2 CHARLES G. GllGTNEEfi. 

